Володимир

Backend developer

Age:
32 years
City:
Kyiv

Contact information

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Work experience

Fullstack-розробник

from 08.2019 to now (7 years 4 months)
JSN PLC, Київ (IT)

* Backend Development: Built and maintained production applications using PHP (Laravel, CodeIgniter, Zend) and Node.js (NestJS, Express).
* API Development: Designed and implemented REST and GraphQL APIs, business logic, and third-party integrations.
* Database Design: Designed database schemas and worked with PostgreSQL, MySQL, MariaDB, MongoDB, and Redis.
* Performance Optimization: Profiled and optimized SQL queries, indexes, and API endpoints, including systems with millions of records.
* Database Troubleshooting: Resolved excessive database connections, optimized complex queries, and improved transaction handling.
* System Architecture: Participated in backend architecture decisions, service design, and infrastructure improvements.
* Legacy Modernization: Maintained and refactored legacy PHP applications, including migration from PHP 5.6 to 7.0.
* Third-Party Integrations: Integrated Stripe, PayPal, Binance API, AWS services, and AI-powered functionality.
* Cloud & Infrastructure: Worked with AWS (Lambda, S3, RDS, SNS, CloudWatch), Docker, and deployment processes.
* Technical Ownership: Owned features end-to-end, conducted code reviews, mentored developers, and contributed to technical decisions.

PHP developer

from 01.2019 to 08.2019 (8 months)
SmartPIPL Agency, Запоріжжя (IT)

* Worked with WordPress, backend integrations, frontend customization, and client feature development.
* Used WordPress and Laravel to deliver web features and integrations.

Education

Запорізький Технічний Університет

ЕТФ, Запоріжжя
Higher, from 2010 to 2016 (6 years)

Knowledge and skills

  • Docker
  • WordPress
  • PHP
  • MongoDB
  • PostgreSQL
  • AWS
  • GraphQL
  • Prisma ORM
  • Архітектура рішень
  • Feature-sliced design
  • TypeScript
  • Node.js
  • Plesk
  • Laravel
  • Symfony
  • Express.js
  • Python
  • Anthropic claude
  • Codex

Language proficiencies

English — advanced

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